Leaf table

ABSTRACT

An elevating leaf table has leaves, a table frame, table legs, drawers and lifters. The table frame has longitudinal and transverse frames. Each of the longitudinal frames has longitudinal slots and top blocks. Each of the transverse frames has a drawer slot and two runner slots. The leaves are a right major leaf, a left major leaf, a right secondary leaf and a left secondary leaf. Each of the major leaves has two runners with two major lifters, and each of the secondary leaves has two runners and two secondary lifters. Each of the lifters has a slanted surface, and the slanted surfaces of the major lifters face the slanted surfaces of the secondary lifters. Each of the runners on the secondary leaves has a concave groove, which engaged with a corresponding stop blocks.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a leaf table, and more particularly to a leaf table, which has two hidden secondary leaves respectively hidden under two major leaves.

[0003] 2. Description of Related Art

[0004] With reference to FIG. 9, a conventional leaf table comprises leaves (20), spring bias leakages (not shown), slots (not shown), four mounting brackets (not numbered), frames (not numbered) and four table legs (60). Each of the four table legs (60) has a top (not numbered), and the mounting brackets are respectively mounted on the top of four legs forming four corners (not numbered) of the leaf table. The frames have two longitudinal frames (not numbered) and two transverse frames (not numbered). Each of the longitudinal frames has a longitudinal slot (not numbered). Each of the transverse frames has a runner slot (not numbered). The longitudinal and transverse frames are mounted to the four mounting brackets and form the four sides (not numbered) of the leaf table. Slots comprise two longitudinal slots and two transverse slots. The longitudinal and transverse slots are mounted to the corresponding longitudinal and transverse frames. The longitudinal and transverse slots are mounted perpendicular to each other. The leaves (20) have two major leaves (21, 22) and two secondary leaves (23, 24). The secondary leaves (23, 24), abutting each other, are mounted under the two major leaves (21, 22) wherein the major leaves (21, 22) abutting with each other. The spring bias leakage is mounted under the secondary leaves (23, 24).

[0005] When the two major leaves (22) are pulled apart, the secondary leaves (24) are exposed. When the secondary leaf (22) is completely exposed, the spring bias leakage pushes the secondary leaves (24) right up abutting the two major leaves (22). When two major and two secondary leaves (22, 24) are on a same horizontal level (not numbered), the leaf table surface areas is at a maximum expansion and provides ample space for a large dinner setting. When the secondary leaves (24) are not needed then the secondary leaves (23, 24) are pressed down and the major leaves (22, 24) are push together to abut with each other.

[0006] The disadvantage of the leaf table is that the spring bias leakage has a limited lifetime. That is, the spring bias leakage has the possibility to be broken because of mechanical failure or inappropriate usage.

[0007] To overcome the shortcomings, the present invention tends to provide an lifters for a leaf table to mitigate or to obviate the aforementioned problems.

SUMMARY OF THE INVENTION

[0008] The primary objective of the present invention is to provide a leaf table that has the ability to expand the table top surface area by a mechanism of lifters.

[0009] To accomplish the foregoing objective, the elevating leaf table has an lifters that lifts two secondary table leaves up to abut two major table leaves by separating apart the two abutting major table leaves.

[0010] Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011]FIG. 1 is a perspective view of a leaf table in accordance with the present invention;

[0012]FIG. 2 is an exploded perspective view of the leaf table in FIG. 1;

[0013]FIG. 3 is a bottom perspective view of major leaves and secondary leaves of the leaf table in FIG. 1;

[0014]FIG. 4 is an operational side plan view in partial cross section of the leaf table in FIG. 1 showing that the left secondary leaf and the left major leaf is separated;

[0015]FIG. 5 is an operational side plan view in partial cross section of the leaf table in FIG. 4 showing that the left secondary leaf is elevated to the left major leaf horizontal level;

[0016]FIG. 6 is an operational side plan view in partial cross section of the leaf table in FIG. 4 showing that the left secondary leaf is connected to the left major leaf;

[0017]FIG. 7 is a perspective view of the leaf table in FIG. 1 showing that the leaf table is in an expansion condition

[0018]FIG. 8 is a perspective view of a the leaf table in FIG. 1 showing that the leaf table is completely expanded; and

[0019]FIG. 9 is a perspective view of a conventional leaf table in accordance with the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0020] With reference to FIGS. 1 and 2, the leaf table in accordance with the present invention is rectangular and comprises multiple leaves (10), a table frame (30), slots (not numbered), multiple table legs (50), drawers (70) and lifters.

[0021] Each of the table legs (50) has a top (not numbered). The table frame (30) comprises four frame brackets (32), two longitudinal frames (31) and two transverse frames (33). The four frame brackets (32) are respectively mounted on the top of the table legs (50), and form four corners (not numbered) of the leaf table. Each of the longitudinal frames (31) has a longitudinal grooves (not numbered) and an inner surface (not numbered). Two stop blocks (311) are mounted respectively on the inner surface of the two longitudinal grooves. Each of the two transverse frames (33) has a drawer slot (not numbered) and two runner slots (not numbered). The two longitudinal and transverse frames (31, 33) are mounted on the four frame brackets (32), and form the four sides of the leaf table. The longitudinal and transverse frames (31, 33) are mounted perpendicular to each other.

[0022] The slots comprise one central slot (not numbered), two longitudinal slots (not numbered) and two transverse slots (not numbered). The central slot has a The left mounting side has three stub grooves. The two transverse slots are mounted parallel between the two longitudinal frames (31) abutting the two stop blocks (311). The two longitudinal slots are connected to a left side (not numbered) of the two runner slots.

[0023] With further reference to FIGS. 3 and 4, the leaves comprises two major leaves (11, 12) and two secondary leaves (13, 14). The two major leaves (11, 12) includes a right major leaf (11) and a left major leaf (12). The right major leaf (11) has a left mounting side (not numbered) and the left mounting side has three stubs (not numbered). The left major leaf (12) has a right mounting side (not numbered) and the right mounting side has three stub holes (not numbered). The two secondary leaves (13, 14) includes a right secondary leaf (13) and a left secondary leaf (14). Each of the right and left secondary leaves (13, 14) has a right and a left mounting sides (not numbered). Each of the left mounting sides of the two secondary leaves (13, 14) has three stubs (not numbered). Each of the right mounting sides of the two secondary leaves (13, 14) has three stub holes (not numbered). Each of two major leaves (11, 12) has two L-shaped runners (111 121), and each of the two runners (111, 121) has two major lifters (113, 115, 123, 125). Each of the runners (111, 121) is mounted onto the major leaves (11, 12) with a gap (not shown) existing between the runners (111, 121) and the major leaves (11, 12). Each of the major lifters (113, 115, 123, 125) has a slanted surface (not numbered). Each of the two secondary leaves (13, 14) has two runners (131, 141) and two pairs of secondary lifters (133, 135, 143, 145). The two runners (141) and lifters (143,145) abut the left mounting side of the left mounting side of the left secondary leaf (14). Each of the two runners (131, 141) has two concave grooves (137, 147). Each of the lifters (133, 135, 143, 145) has a slanted surface (not numbered).

[0024] When the major and secondary leaves (11, 12, 13, 14) are assembled on the table frames (31, 33), The slanted surfaces of the major lifters (113, 115, 123, 125) on the runners (11, 12) are respectively facing the slanted surfaces of the secondary lifters (133, 135, 143, 145) on the runners (13, 14). The stubs on the left mounting side of the right major leaf (1 1) are connected to the stub holes in the right mounting side of the left major leaf (12). The stubs on the left mounting side of right secondary leaf (13) are connected to the stub grooves of the central slots. The two runners (111, 121) are slideably engaged into the runner slots of the secondary frame (33) then the drawers (70) with front panels (71) are respectively and slideably engaged into the drawer slots. Therefore, the front panels (71) blocks the runners (111, 121) from sliding out of the runner slots, and the drawers (70) need to be removed before the two major leaves (11, 12) are pulled apart.

[0025] With reference to FIGS. 3 through 7, when the left major leaf (12) is pulled away from abutting the central slot, the major runners (121) on the left major leaf (12) slide along the runner slots and move left. The major lifters (123, 125) slide left with the runners (121). The concave groove (147) on the left secondary leaf (14) received the corresponding stop block (311) when the left secondary leaf (14) is mounted in the longitudinal groove of the longitudinal frame (31). When the slanted surfaces of the major lifters (123, 125) are sliding on the left secondary leaf(14), the secondary lifters (143,145) will be raised up along the slanted surface of the major lifters (123, 125) on the left major leaf(12). With the engagement between the concave groove (147) and the corresponding stop block (311), the left secondary leaf (14) will not slide left along the slanted surface on the left major leaf (12) but will move upward with the secondary lifters (143,145). Therefore, the left secondary leaf (14) raises up vertically till the left secondary leaf (14) is horizontally leveled with the left major leaf (12) and the corresponding stop block is disengaged from the concave groove of the left secondary leaf (14). The secondary leaf (14) is then pushed right so the stub holes in the right mounting side of the left secondary leaf (14) receive stubs from the right major leaf (11). The left secondary leaf (14) is on the central slot, and the left major leaf (12) is pushed right so the stub holes on the right mounting side are engaged with the stubs on the left mounting side of the left secondary leaf (12). The above-mentioned actions are repeated mentioned actions to separate the right major leaf (11) and to raise right secondary leaf (13). The largest area of the table surface is when both secondary leaves (13, 14) are raised and leveled with the major leaves (11, 12). The advantage of the inventive leaf table is that the leaf table has a long life time usage because the leaf table does not need replacements of any particular mechanical part like the conventional leaf table.

[0026] It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. 

What is claimed is:
 1. A table leaf comprising; four table legs; a table frame attached to the table legs and comprising; a table bracket securely mounted on each respective table leg; two longitudinal table frames respectively attached between adjacent table brackets, and each of the longitudinal frames having a longitudinal slot and a inner surface; wherein two stop blocks are securely mounted on the inner surface below each of the longitudinal slot; and two transverse table frames respectively attached between adjacent table brackets and vertical to the longitudinal table frames, and each of the transverse table frames having a drawer slots and two runner slots; multiple slots defined in the table frame and comprising a central slot, longitudinal slots and transverse slots; wherein the longitudinal slots are connected on the transverse frames, and the transverse slots are connected to the longitudinal frames; wherein the central slot has a right mounting side, and the right mounting side has stub grooves; two drawers slideably engaged respectively in the drawer slots, and each of the drawers having a front panel; and leaves moveably attached to the table frame and comprising a right major leaf, a left major leaf, a right secondary leaf and a left secondary left, wherein each of the major leaves has two first runners, and each of the two runners having two first lifters with slanted surfaces; a gap is defined between the two first runner and the major leaves; the secondary leaves are mounted in the gap before the secondary leaves are raised to abut the major leaves; the right major left has a left mounting side with stubs, and the left major leaf has a right mounting side with stub holes into which the stubs on the right major leaf are engaged; each of the secondary leaves has a right mounting side, a left mounting side, two second runners and two secondary lifters, wherein each of the two second runners has a concave groove, and each of the secondary lifters has a slanted surface, wherein the slanted surfaces on the secondary lifters on the secondary leaves respectively face the slanted surfaces of the lifters on the major leaves; wherein the left mounting side of the left secondary leaf has stubs, and the right mounting side of the left secondary leaf has stub holes; the left mounting side of the right secondary leaf has stubs, and the right mounting side of the left secondary leaf has stub holes; and each of the lifters is engaged with one of the corresponding stop blocks.
 2. The leaf table as claimed in claim 1, wherein the drawers are removed to enable the major leaves to be separated from each other. 